Park South Capital
A Private Investment Firm

We build the companies we back

Park South Capital is a private investment firm making control and growth-equity investments in businesses we help build — bringing an operator's discipline, not just capital, across market cycles.

The Firm

A private investment firm and single-family office, investing our own capital with conviction — and without the constraints of a fund cycle.

Principal capital · Long-term horizon

Park South Capital takes control and growth-equity positions in businesses across a focused set of sectors. Because we invest principal capital, we are free of fund timelines — able to hold, support, and build alongside the teams we back for as long as it takes.

We are operators before we are investors. Between us, our Partners have founded, financed, and led companies through more than three decades and multiple market cycles. That experience shapes how we underwrite, how we govern, and how we help management create durable value.

Our name comes from Central Park South in New York, where the firm was founded. It reflects how we prefer to work: long-term, relationship-driven, and quietly deliberate.

Approach

An operator's discipline, applied to capital.

We back management teams and build durable businesses — rather than simply allocating capital.

01

Operators-first mentality

We have built, bought, financed, and led companies ourselves. We bring that discipline to governance, capital allocation, and value creation — engaged partners, not passive holders.

02

Control & growth equity

From majority-control investments to structured and growth capital, we take meaningful positions and stay close to the businesses we back.

03

Principal capital, patient horizon

We invest our own capital. Free of fund timelines, we can support companies across cycles rather than around them.

04

We partner with Founders

We invest behind people first. Our aim is to build enduring companies in genuine partnership with the founders and teams who run them.

Focus

Where we invest.

We concentrate on sectors where our operating experience gives us an edge — and where we can add more than money.

01Asset Management
02Banking & Capital Markets
03Biotechnology & Life Sciences
04Fintech
05Technology, Media & Telecom
06U.S. Security & Defense
Investment Process

How we partner.

We are thesis-driven and founder-first. We make a small number of investments each year and commit deeply to each.

We would rather know a few companies well than screen thousands — and back the people building them for the long run.

When we invest, we bring an operator's perspective, because we have built and run companies ourselves, together with the patience of permanent capital. We care less about the shape of a deal than about the quality of the people and the durability of what they are building.

Because we invest our own capital as a single-family office, our process is direct. That means faster decisions, clearer answers, and a longer time horizon than most institutional investors can offer — a definitive yes, a straight no, or exactly what we would need to see.

01

Introduction

A warm introduction, or a submission through this site. We screen every opportunity against our focus areas and stage.

02

First conversation

We meet the team to understand the thesis, the market, the product, and what makes the moment right.

03

Diligence

We dig in across the business, product and technology, financials, customers, and references — thorough, but founder-friendly.

04

Conviction

We form an internal view. As principals, there is no committee or outside approval to navigate.

05

Terms

If it is a fit, we move to terms. Investing our own capital lets us decide quickly and with certainty of close.

06

Partnership

We support well beyond the check: governance, introductions, recruiting, and follow-on capital across cycles.

What we look for
01TeamFounders with unusual insight, integrity, and drive — and the ability to attract exceptional people.
02MarketLarge or fast-emerging markets, entered at the right moment for the right reasons.
03ProductA genuinely differentiated product with clear evidence of customer pull.
04Durable advantageA credible path to a real moat — technology, network, data, or execution.
05EconomicsSound unit economics and capital efficiency, with a believable path to scale.
06AlignmentShared values, realistic expectations, and a true partnership fit.
Our due diligence process

Our diligence is rigorous but respectful of a founder's time. Depending on stage, it may include market mapping and sizing; product and technical review, including architecture and intellectual property; review of the financial model and unit economics; cohort, retention, and pipeline analysis; customer and partner reference calls; management and backchannel references; and legal, capitalization, and regulatory review.

We aim to be the most prepared investor in the room and the easiest to work with — direct about what we think, clear about what we need, and quick to a decision.

We invest our own capital — and build alongside the companies we back.
Park South Capital  ·  Central Park South, New York
Leadership

Partners.

Sorina Buri

Sorina Buri

Managing Partner, Founder

Sorina is a global institutional asset-management executive and multiple-time founder with more than three decades across London, Hong Kong, Toronto, and New York. As Co-Founder and Managing Partner, she brings an operator's discipline to portfolio oversight, board governance, capital allocation, and institutional relationship-building.

She developed deep relationships across pension plans, endowments, foundations, and sovereign wealth funds; co-founded a fund of funds that was at the forefront of this sector, later acquired by a major bank; and served as Head of Canadian Institutional Business for Russell Investments. Her board and advisory work spans public, private, health, technology, and cultural organizations.

She holds an MBA from the University of Toronto's Rotman School of Management, with additional studies at the London School of Economics.

Christopher J. Teas

Christopher J. Teas

Managing Partner, Co-Founder

Christopher is a private-equity operator and multiple-time founder with more than 38 years across banking, capital markets, and private equity. As Managing Partner and Head of Private Equity, he leads the firm's investing and operating work — spanning majority-control investments, structured finance, and growth capital.

Over his career he has built, bought, financed, and led companies through multiple market cycles, with experience across asset management, banking, healthcare and biotech, media and telecom, and emerging technology. He previously held senior roles at Morgan Stanley, Belstar Group, Ticonderoga Securities, and Southport Lane, and serves as Chief Executive Officer of CAD Therapeutics, a clinical-stage biotechnology company.

He earned his BA from Lewis & Clark College and studied at the Institut Catholique in Paris.

For Founders

Submit a business plan.

If you are building something exceptional in one of our focus areas, we would like to hear from you.

Send a short deck, one-pager, or executive summary — and a few lines on the team, the product, and where you are today.

Please keep it concise; we read everything that fits our focus. We review submissions on a rolling basis, and if there is a potential fit we will reach out. Given the volume we receive, we are not always able to respond to every submission individually.

Because materials cannot be attached securely through this website, please include a link to your deck or one-pager (for example, a DocSend, Google Drive, or Dropbox link). Do not upload files here.

Important — please read before submitting

Do not send confidential, proprietary, or trade-secret information.

By submitting any materials to Park South Capital, you acknowledge and agree that: (1) the materials and their contents are non-confidential and non-proprietary and are provided without any obligation of confidentiality on our part; (2) we do not sign non-disclosure agreements in connection with unsolicited submissions; (3) we are under no obligation to review, evaluate, respond to, return, or act upon any submission; (4) we review many opportunities and may now or in the future review, evaluate, invest in, advise, or work with companies that are similar to or competitive with yours; (5) we and others may independently develop or receive similar ideas, concepts, or products, and nothing in your submission restricts or obligates us; (6) no submission creates any partnership, agency, fiduciary, advisory, joint-venture, employment, or other relationship, and no offer is made or implied by either party; (7) you represent that you have the right to share the materials, that doing so breaches no obligation to any third party, and that the submission violates no agreement to which you are bound; and (8) you grant Park South the right to review, evaluate, and retain the materials for its records, without any compensation to you.

Park South Capital is a private single-family office. It has no clients, manages no third-party capital, offers no products, and does not provide investment, legal, tax, advisory, or compliance services. Please also review our full Legal notices.

Contact

Inquiries.

Park South Capital engages selectively and largely by direct introduction — from a peer, colleague, or a Founder we back or have backed previously.

Please do not reach out by WhatsApp, LinkedIn, Signal, Telegram, or SMS.

Or email info@parksouthcapital.com
All inquiries are treated in confidence.